کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10633605 993046 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanochemical synthesis of nanocrystalline carbonate-substituted hydroxyapatite
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Mechanochemical synthesis of nanocrystalline carbonate-substituted hydroxyapatite
چکیده انگلیسی
Carbonate-substituted hydroxyapatite has been produced by solid-state reactions using a mechanochemical synthesis method. Ammonium phosphate monobasic and calcium carbonate were used as raw materials. Mixtures of the initial powders were prepared using a Ca/P molar ratio similar to that of non-substituted hydroxyapatite, Ca10(PO4)6(OH)2. Dry milling of the powders was performed by using a ball to powder weight ratio equals 20:1. The obtained product was characterized by means of infrared spectroscopy, transmission electron microscopy and X-ray diffraction. Under the employed synthesis conditions hydroxyapatite is obtained after 2 h of milling. The crystallinity and the amount of the hydroxyapatite increase as milling time does. After milling for 6 h, nanosized apatite which has a possible composition Ca9+y(CO3)(PO4)5(OH)1+2y is obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 27, Issue 7, April 2005, Pages 1281-1285
نویسندگان
, , , ,